Pérez A M, Iskhakov T Sh, Sharapova P, Lemieux S, Tikhonova O V, Chekhova M V, Leuchs G
Opt Lett. 2014 Apr 15;39(8):2403-6. doi: 10.1364/OL.39.002403.
Bright squeezed vacuum, a macroscopic nonclassical state of light, can be obtained at the output of a strongly pumped nonseeded traveling-wave optical parametric amplifier (OPA). By constructing the OPA of two consecutive crystals separated by a large distance, we make the squeezed vacuum spatially single-mode without a significant decrease in the brightness or squeezing.
明亮压缩真空，一种光的宏观非经典态，可以在强泵浦非种子行波光学参量放大器（OPA）的输出端获得。通过构建由大间距隔开的两个连续晶体组成的OPA，我们使压缩真空在空间上为单模，而不会显著降低其亮度或压缩程度。
